PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

27GC56M-W70/S4Valve,relief,pressure and Temper

Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris · NSN 4820-01-514-1912 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-514-1912 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-514-1912. Primary manufacturer part number: 27GC56M-W70/S4.
Features
  • Valve,relief,pressure and Temper — FSC 4820
  • Furnished Items: CAP AND NUT AND INLET TAILPIECE
  • Material: STEEL STEM
  • Second End Relationship with First End: IDENTICAL
  • End Connection Quantity: 2
  • First End Nominal Pipe Size Accommodated: 2.000 INCHES IN
  • Second End Connection Type: UNTHREADED INTERNAL PIPE
  • Material: STEEL FLOW CONTROL DEVICE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Stem construction
General Description

The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-514-1912, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-514-1912
Primary Part Number27GC56M-W70/S4
Item NameValve,relief,pressure and Temper
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCurtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
StatusACTIVE
Furnished ItemsCAP AND NUT AND INLET TAILPIECE
MaterialSTEEL STEM
Second End Relationship with First EndIDENTICAL
End Connection Quantity2
First End Nominal Pipe Size Accommodated2.000 INCHES IN
Second End Connection TypeUNTHREADED INTERNAL PIPE
MaterialSTEEL FLOW CONTROL DEVICE
Body StyleANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS
First End Flange Shape StyleOCTAGON W/ BOLT HOLES
Adjustable Pressure Range464.0 TO 520.0 CAMERA MOUNT
First End Style DesignatorSOCKET
Second End Nominal Pipe Size Accommodated2.500 INCHES IN
MaterialSTEEL BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4820-01-514-1772330163-010NM INTERCHANGEABLE
Guide,valve Stem
Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
4820-01-514-1802330165-010 INTERCHANGEABLE
Stem,fluid Valve
Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
Cross-Reference Index
Part NumberManufacturer
27GC56M-W70/S4 PRIMARY Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris (USA)
30173X1 Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris (USA)
30173X1 Curtiss-Wright Flow Control Corporation Dba Curtiss-Wright Flow Control Co Div Target Rock Division (USA)
Related Parts
4820-01-514-1772INTERCHANGEABLE
GUIDE,VALVE STEM
330163-010NM
4820-01-514-1802INTERCHANGEABLE
STEM,FLUID VALVE
330165-010

Frequently Asked Questions

What is NSN 4820-01-514-1912?

NSN 4820-01-514-1912 is a Valve,relief,pressure and Temper, manufactured by Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-514-1912?

NSN 4820-01-514-1912 has 3 cross-referenced part numbers: 27GC56M-W70/S4 (Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris), 30173X1 (Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris), 30173X1 (Curtiss-Wright Flow Control Corporation Dba Curtiss-Wright Flow Control Co Div Target Rock Division).

What NSN replaces 4820-01-514-1912?

There are 2 known substitutes for 4820-01-514-1912: 4820-01-514-1772, 4820-01-514-1802. Verify interchangeability with system specifications before substitution.

What are the specifications of 27GC56M-W70/S4?

Key specifications for 27GC56M-W70/S4: Furnished Items: CAP AND NUT AND INLET TAILPIECE; Material: STEEL STEM; Second End Relationship with First End: IDENTICAL; End Connection Quantity: 2. 15 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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